Real time clock module 4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE RTC-63421/63421M/63423 • • • • • • Builtin crystal unit allows adjustment-free efficient operation. Alarm interruption of sec. to month and day of week possible. Provided with microcomputer compatible bus interface. Standard signal output selectable in a range of 10min. to 1024 Hz. Either sec. to hour and day of week or sec. to year and day of week is selectable. Reference area of time /alarm register is setabil. Provided with RAM bits. (marked on “∗” which is shown resister table) • Provided with START/STOP 30 second adjusting function. • Similar mounting method (RTC-63423) to the used for normal type SMD IC. Actual size Terminal connection Model Applicable CPU RTC-63421/63421M RTC-63421 Intel bus system RTC-63421M Motorola bus system RTC-63423 “MOTEL” bus system 63423 No. 63421/63421M No. INTERRUPT 1 1 INTERRUPT CS 0 2 2 CS 0 ALE 3 3 ALARM A0 4 4 ALE A1 5 5 A0 A2 6 6 30sec.Adj A3 7 7 A1 RD (E ∗1) 8 8 68/80 GND 9 9 A2 10 WR (R/W ∗1) 10 A3 D3 11 11 RD (E ∗2) D2 12 12 GND D1 13 13 WR (R/W ∗2) D0 14 14 D3 CS1 15 15 D2 (VDD) 16 16 D1 (VDD) 17 17 1H Z VDD 18 18 D0 19 CS 1 20 STOP/ START 21 NC (VDD) 22 (VDD) 23 24 VDD 18 17 16 15 14 13 12 11 10 Specifications (characteristics) Absolute Max. rating Item Power source voltage Input voltage storage temperature Soldering condition Symbol Condition Ta=25˚C VDD VIN Ta=25˚C TSTG TSOL Specifications Unit -0.3 to 7.0 -0.3 to VDD+0.3 V -55 to +85 -55 to +125 ˚C RTC-63421 RTC-63421M RTC-63423 RTC-63421 RTC-63421M Under 260˚C within 10 sec. (lead part) (package should be less than 150˚C) RTC-63423 Twice at under 260˚C within 10 sec. or under 230˚C within 3 min. 1 2 3 4 5 6 7 8 9 RTC-63423 24 23 22 21 20 19 18 17 16 15 14 13 Operating range VDH CS data holding time tCDR Operation restoring time tR Refer to the data holding timing V -40 to +85 2.0 to 5.5 ˚C V 2.0 min. µs Frequency characteristics and current consumption characteristics Item Symbol Condition 63421A/63421MA Frequency tolerance ∆f/fo Ta=25˚C 63421B/63421MB VDD=5V 63423 A 63423 Specifications +15/-5 (5±10) (VDD) is to be same level as VDD. Do not connect it to any external terminals. NC is not connected internally. External dimensions RTC-63421/63421M +55/-45 (5±50) +10/-120 -30 to +85˚C (25˚C reference temperature) +10/-220 fa VDD=5V, Ta=25˚C, first year ±5 max. Shock resistance S.R. Three drops on a hard board from 75 cm or 3000G x 0.3ms x 1/2 sine wave x 3 directions Current consumption IDD 1 IDD 2 CS 1=0V ∗ 2=Motorola bus system (Unit: mm) 23.1 max. +25/-15 (5±20) ppm -10 to +70˚C Aging ∗ 1=63421M +55/-45 (5±50) (25˚C reference temperature) Frequency temperature characteristics Unit 1 2 3 4 5 6 7 8 9 10 11 12 ±10 max. VDD=5V 30max. VDD=2V 1.8 max. RTC63421 A EPSON 6051A 7.62 ppm/Y 0.2 min. Data holding voltage ------- Unit 4.5 to 5.5 0.25 ppm µA Unless otherwise stated, characteristics (specifications) shown in the above table are based on the rated operating temperature and voltage condition. 90° to 105° 3.3 min. TOPR Specifications RTC-63423 16.3 max. 57 2.8 max. 0° to 10° 1.0 0.2 0.05 min. 0.3 2.5 RTC63423 A EPSON 6100 7.9 Operating temperature Condition 12.2 max. VDD 6.8 Symbol 4.2 max. Item Operating voltage Real time clock module Data hoiding timing Switching characteristics ( VDD = 5V ± 0.5V, Ta = 0 to + 70˚C ) Motorola bus system VDD 4V t CDR CS1 Min. tRWE 100 E “H” pulse width tEHW 220 __ R/W, address hold time tERW 20 E “L” pulse width tELW 220 E cycle time tEC 500 DATA setup time tDS 180 DATA hold time tDH 20 E to data (CL=150pF) tRD –– 120 Data hold tED 10 –– Item tR VIH VIL2 CS1 ≤ 1/5VDD VIL VIL Data holding mode Interface possible with external terminals Symbol __ R/W, address setup time 4V 2 to 4V CS0 or WR not occurred Interface possible with the external terminals Address Register table Symbol of register 0 1 2 3 4 R-S1 R-S10 R-MI1 R-MI10 R-H1 D3 r-S8 ∗ r-mi8 ∗ r-h8 5 R-H10 ∗ 6 7 8 9 A B C R-D1 R-D10 r-d8 R-MO1 R-MO10 r-mo8 R-Y1 R-Y10 R-W r-y8 r-y80 ∗ r-mo4 ∗ r-y4 r-y40 r-w4 D CD IT/PLS2 IT/PLS1 MASK2 MASK1 Control register D E CE IRQ ⋅ FLAG0 RESET IRQ ⋅ FLAG2 IRQ ⋅ FLAG1 Control register E F CF BANK1 BANK0 STOP 30 sec. ADJ READ FLAG Control register F BANK 0 D1 r-S2 r-S20 r-mi2 r-mi20 r-h2 D0 r-S1 r-S10 r-mi1 r-mi10 r-h1 Real time register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register r-PM/AM r-h20 r-h10 10 - hour digit register r-d4 r-d2 r-d20 r-mo2 r-y2 r-y20 r-w2 r-d1 r-d10 r-mo1 r-mo10 r-y1 r-y10 r-w1 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register 1 - year digit register 10 - year digit register Week register D2 r-S4 r-S40 r-mi4 r-mi40 r-h4 ___ ∗ R/W VIL1 VIL1 VIH1 VIH1 VIL1 VIL1 A0 to A3 t RWE t EHW t ERW t ELW D1 a-S2 a-S20 a-mi2 a-mi20 a-h2 D0 a-S1 a-S10 a-mi1 a-mi10 a-h1 Alarm register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register a-PM/AM a-h20 a-h10 10 - hour digit register a-d4 a-d2 a-d20 a-mo2 a-w2 ae2 TEST2 a-d1 a-d10 a-mo1 a-mo10 a-w1 ae1 TEST1 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register Week register Area define register Test register CY1 CY0 Control register D CAL D⋅P Control register E A-S1 A-S10 A-MI1 A-MI10 A-H1 A-H10 ∗ A-D1 A-D10 a-d8 A-MO1 A-MO10 a-mo8 A-W A-EMB a-mo4 ∗ r-w4 ae4 ∗ ae8 ∗ CC CD ∗ CE HD/SFT CF ___ ∗ VIL1 E VIH1 VIH VIL1 t DS Same as BANK 0 VIL t DH VIH1 VIH1 VIL1 Read mode R/W A0 to A3 VIH1 VIH1 VIH1 VIH1 VIL1 VIL1 t RWE E VIL1 t EHW VIH1 t ERW t ELW VIH1 D0 to D3 VIL1 VIL t ED t RD CY2 __ 24/12 ns t EC BANK 1 D2 a-S4 a-S40 a-mi4 a-mi40 a-h4 –– Write mode VIL1 D3 a-S8 ∗ a-mi8 ∗ a-h8 Unit Switching characteristics on the Intel bus system are the same as those for the RTC-6242 series. D0 to D3 Symbol of register Max. VOH1 VOH1 VOL1 VOL1 t EC Control register F 58